5.8 There are consequences and risks associated with water insecurity. Flashcards
How much is spent to improve water security annually from players and international agencies?
US$35 billion
Access to water is limited as developing countries consist of how many people without clean water?
1 billion
Water insecurity can be linked to the idea to a lack of A,A,U?
Availability - having not enough water
Access - freedom for use, or income to buy
Usage - entitlement to and understanding of water use.
Physical scarcity is related to -
Climate and largely determined between inputs and outputs, topography and geology may be seen more local, climate change can be seen more global.
Economic scarcity -
Associated with developing countries whom lack technology and good governance to often exploit their use of blue water.
The price of water can vary for example distance travelled -
E.G the Californian coastal city of Los Angeles gets it water across a very long pipeline so it must depend on infrastructure.
The price of water may vary due to infrastructure -
E.G such as Accra in Ghana, due to insufficient infrastructure, where people living in slums have to rely on tankers and bottled water where the cost of water from informal vendors are nearly twice as high as that of standard tap connections therefore it is costing them more to operate these methods and also receive inefficient and undeveloped water supply long-term.
Water supply for economic development for agriculture -
Irrigation is necessary in some countries who dependently rely on water alone. Farmers focus on storing rainwater supplies for harvesting, the need for blue water or ground water is needed for enhanced crop growth. Around 1/5 of the world’s land is under use for irrigation (where water is taken to supply the land for crop yield).
Other agricultural needs for water to ensure economic development is dietary revolution in China -
Increased in major dairy and meat based products, this is significant to manage as based on their current changing attitudes it costs 2975 litres to produced 1 kg of rice and 6 times more water for a kg of beef, so managing agricultural demands is of paramount importance in managing overall water security, as without it there will be implications of dietary requirements and reduce economic activity of agriculture.
Other water importance is for economic development of industry and energy, how much % freshwater withdrawal is used for energy production and industry?
Just over 20%
The importance of water for HEP in New Zealand - rely one what?
Countries that rely heavily on the production of HEP like New Zealand are very dependant on rainfall but changing rain patterns can hinder its industry.
Biofuels are considered a renewable energy however heavily rely on water -
The growth of biofuels can be seen as concerning with water security and accessibility and availability. For example Biofuels are quite thirsty where 1 litre of bioethanol requires 10,000 litres of water and biodiesel is 20,000 litres for a litre as well, so large quantities are needed for sustainable schemes of energy management.
The need and importance of water for human well-being - Poor sanitisation and disease
Problem is with disease from unsafe water. Water and disease interact in 2 ways where unsafe drinking water can spread disease but water for personal hygiene can prevent disease transmission.
A poor sanitisation leads to major water-related diseases which relate to 10% of ‘global disease burden’ this combined with low standards of living and personal hygiene from potential diarrhoeal diseases like cholera are diseases transmitted from faecal-oral routes and are massively affected by water type.
How much of the world’s population relies on unprotected water?
15%
The potential conflicts over water within a country - Kielder Northumberland - dam
For example the building of the Kielder Northumberland dam, has led to concern over flooding of farm valleys and villages.